Aqueous surfactant compositions

Patent metadata

Field	Value
Publication number	US-11248191-B2
Application number	US-201716304766-A
Country	US
Kind code	B2
Filing date	May 11, 2017
Priority date	May 30, 2016
Publication date	Feb 15, 2022
Grant date	Feb 15, 2022

Abstract

What are proposed are aqueous surfactant compositions comprising one or more of each of alpha-sulfo fatty acid disalts, sulfo ketones, alkyl (ether) sulfates, soaps, inorganic salts of sulfuric acid and water, where the structures of the compounds mentioned and boundary conditions that are to be observed can be found in the patent claims. These compositions have good foaming ability and pleasant sensory properties of the foam and good skin compatibility and they are suitable for cosmetic agents as well as detergents and cleaner.

First claim

The invention claimed is:

1. An aqueous surfactant composition comprising
one or more alpha-sulfo fatty acid disalt (A) of general formula (I)
R 1 CH(SO 3 M 1 )COOM 2   (I),

in which the radical R 1 is a linear or branched alkyl or alkenyl radical having 6 to 18 carbon atoms and the radicals M 1 and M 2 , independently of one another, are selected from the group consisting of H, Li, Na, K, Ca/2, Mg/2, ammonium and, alkanolamine,
one or more sulfo ketone (B) selected from compound (F) and the compound (G),
where the compound (F) has a general formula (VI)
R 6 CH 2 —CO—CHR 7 (SO 3 M 8 )  (VI),

wherein the radicals R 6 and R 7 , independently of each another, are a linear or branched alkyl radical having 6 to 18 carbon atoms and the radical M 8 is selected from the group consisting of H, Li, Na, K, Ca/2, Mg/2, ammonium, and alkanolamine,
and where the compound (G) has a general formula (VII)
(SO 3 M 9 )R 8 CH—CO—CHR 9 (SO 3 M 10 )  (VII),

wherein the radicals R 8 and R 9 , independently of each other, are a linear or branched alkyl radical having 6 to 18 carbon atoms and the radicals M 9 and M 10 , independently of each other, are selected from the group consisting of H, Li, Na, K, Ca/2, Mg/2, ammonium, and alkanolamine,
one or more sulfate (X) which are selected from an alkyl sulfate of general formula (IIa) and an alkyl ether sulfate of the general formula (IIb)
R 70 SO 3 M 70   (IIa)

R 71 O(CH 2 CH 2 O) n SO 3 M 70   (IIb),

where the radicals R 70 and R 71 are independently a linear or branched alkyl radical having 8 to 20 carbon atoms and the index n is a number in the range from 1 to 20 and the radical M 70 is selected from the group consisting of H, Li, Na, K, Ca/2, Mg/2, ammonium and alkanolamines,
one or more compound (C) of general formula (III)
R 4 COOM 5   (III),

in which the radical R 4 is a linear or branched alkyl or alkenyl radical having 7 to 19 carbon atoms and the radical M 5 is selected from the group consisting of H, Li, Na, K, Ca/2, Mg/2, ammonium, and alkanolamine,
one or more inorganic salt of sulfuric acid (D) of the general formula (IV)
(M 6 ) 2 SO 4   (IV),

where M 6 is selected from the group consisting of Li, Na, K, Ca/2, Mg/2, ammonium and, alkanolamine,
water,
where the following proviso applies:
if the aqueous surfactant compositions comprises one or more ester sulfonate (E) of general formula (V)
R 2 CH(SO 3 M 7 )COOR 3   (V),

in which the radical R 2 is a linear or branched alkyl or alkenyl radical having 6 to 18 carbon atoms and the radical R 3 is a linear or branched alkyl or alkenyl radical having 1 to 20 carbon atoms, where the radical R 3 can be an alkenyl radical or be branched only above 3 carbon atoms, and the radical M 7 is selected from the group consisting of Li, Na, K, Ca/2, Mg/2, ammonium, and alkanolamine, it is the case that the compound (A), based on the totality of the compound (A) and (E), must be present to an extent of 50% by weight or more.

2. The composition according to claim 1 , wherein the radical R 1 in the formula (I) is a saturated, linear alkyl radical having 10 to 16 carbon atoms, where with regard to the compound (A), it is the case that the fraction of the compound (A) in which the radical R 1 is a decyl or a dodecyl radical, based on the total amount of the compounds (A), is 90% by weight or more.

3. The composition according to claim 1 , wherein the radicals M 1 and M 2 are selected from H (hydrogen) and Na (sodium).

4. The composition according to claim 1 for use in cosmetic products, detergents, and cleaners.

5. The composition according to claim 1 for use in cosmetic products in the form of hair shampoos, shower gels, soaps, syndets, washing pastes, washing lotions, scrub preparations, foam baths, oil baths, shower baths, shaving foams, shaving lotions, shaving creams, and dental care products.

6. The composition according to claim 1 , wherein the alkanolamine is selected from the group consisting of monoethanolamine, diethanolamine, triethanolamine, and monoisopropylamine.

7. The composition according to claim 1 , wherein if the ester sulfonate (E) is present, it is the case that compound (A), based on the totality of the compound (A) and (E), must be present to an extent of 90% by weight or more.

8. A method for cleaning a hard surface at a low pH comprising contacting said hard surface with the aqueous surfactant composition according to claim 1 .

Assignees

• Basf Se

Inventors

• Brunn Claudia
• Behler Ansgar

Classifications

• A61Q11/00

  Preparations for care of the teeth, of the oral cavity or of dentures; Dentifrices, e.g. toothpastes; Mouth rinses · CPC title

• A61K8/042

  Gels · CPC title

• C11D1/146

  Sulfuric acid esters · CPC title

• C11D1/37 Primary

  Mixtures of compounds all of which are anionic · CPC title

• C11D3/046

  Salts · CPC title